The regulations for examination of qualification to excavate on archaeological sites Article 11

If any significant discovery is made during the excavation, the excavator shall report to the competent authority immediately.
中文原文 考古遺址發掘資格條件審查辦法第11條
考古遺址發掘有重大發現時,發掘者應即報主管機關處理。

English translation for reference only; the Chinese text prevails. Not legal advice.